CN110174051A - A kind of online accuracy detecting device of Hooke's hinge - Google Patents
A kind of online accuracy detecting device of Hooke's hinge Download PDFInfo
- Publication number
- CN110174051A CN110174051A CN201910462803.1A CN201910462803A CN110174051A CN 110174051 A CN110174051 A CN 110174051A CN 201910462803 A CN201910462803 A CN 201910462803A CN 110174051 A CN110174051 A CN 110174051A
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- hooke
- hinge
- fixed
- rocker arm
- target ball
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/023—Power-transmitting endless elements, e.g. belts or chains
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of online accuracy detecting device of Hooke's hinge, guarantee that transiting rod is sandwiched between two bars of pitch regulation module, similarly guarantee that transiting rod is sandwiched between two bars of beat adjustment module, the pitch orientation of Hooke's hinge is first fixed to a certain specific position, beat direction is adjusted to several specific positions, every position laser tracker measures the sphere centre coordinate position of a target ball, beat direction is adjusted after a circulation, pitch orientation is adjusted to next specific position, continue the above method and adjusts beat direction, obtain the sphere center position coordinate of target ball, all target ball sphere centre coordinates are fitted to a spherical surface after being completed, it calculates all these target ball sphere centre coordinates and fits the root-mean-square value between the spherical surface come, the value is the accuracy value of the Hooke's hinge.The present invention has the characteristics that test sample point solidification and uniform, avoids bring test error due to test position difference, measuring accuracy is high, and testing efficiency is high, is suitable for mass production Hooke's hinge producer.
Description
Technical field
The invention belongs to machinery equipment field more particularly to a kind of online accuracy detecting devices of Hooke's hinge.
Background technique
Hooke's hinge obtains in various forms of parallel institutions as a kind of linkage for being capable of providing two freedom degrees
A large amount of application.Hooke's hinge is the important component of parallel institution, and precision has the mass motion precision of parallel institution
Large effect, and the gap of Hooke's hinge is difficult to be corrected and compensate in the Kinematic Calibration of parallel institution.Existing public affairs
The case of accuracy test in the technical solution opened for Hooke's hinge is less, for the online precision of the Hooke's hinge of mass production
Detection technique scheme is with regard to less.In order to parallel institution Hooke's hinge type selecting provide foundation, and improve detection efficiency and
The research of precision, the online accuracy detecting device of Hooke's hinge is imperative.
Summary of the invention
The purpose of the present invention is to provide a kind of online accuracy detecting devices of Hooke's hinge, to realize the tiger of mass production
Gram hinge high efficiency, high-precision online accuracy detection.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of online accuracy detecting device of Hooke's hinge, including laser tracker, pitch regulation module, Hooke's hinge module to be measured
And beat adjustment module, which is characterized in that the pitch regulation module is for adjusting Hooke's hinge in the position of pitch orientation, by the
One rocker arm, spring, limit screw cap, fixed link, sliding bar and the second rocker arm composition, first rocker arm and second rocker arm
Top of supply line is equipped with axis hole and sliding slot, the fixed link both ends by with the shaft hole matching, limit screw cap is by the fixed link
Both ends limit is fixed on the rocker arm, and the sliding bar both ends are limited by limit screw cap, described in the both ends of the spring connection
Fixed link and the sliding bar, the sliding bar both ends are mounted in the sliding slot of the rocker arm by the spring straining；
The Hooke's hinge module is by U-shaped under U-shaped frame, cross axle and Hooke's hinge on target ball, target ball seat, transiting rod, Hooke's hinge
Frame composition, U-shaped frame is by U-shaped frame on Hooke's hinge described in the cross axis connection under the Hooke's hinge, U-shaped frame on the Hooke's hinge
It is connected through a screw thread the transiting rod, the target ball seat is fixed on the end of the transiting rod, the target by the effect of magnetic force
Ball is fixed on the target ball seat by the effect of magnetic force；
The composition and function of the beat adjustment module are identical as the pitch regulation module, the beat adjustment module
First rocker arm size is greater than the second rocker arm size of the pitch regulation module, and puts with the pitch regulation module square crossing
It sets；
Transiting rod is sandwiched between two bars of the pitch regulation module, while being sandwiched in the two of the beat adjustment module
Between bar；The laser tracker measures the sphere center position coordinate of the target ball.
It preferably, further include conveyer belt, support and tripod, the laser tracker is erected on the tripod, institute
It states tripod to be fixed on the support, the support is placed on conveyer belt side central part.
Preferably, the transmission belt central part is provided with test platform, and it is fixed that the side of the test platform is equipped with first
Position block and the second locating piece, and corresponding screw hole is respectively equipped on four angles of the mounting plane of the test platform.
Preferably, the tooling is fixed by screws in the central part of the conveyer belt.
Preferably, pitch regulation module and beat adjustment module are fixed by screws in the tooling.
Preferably, the Hooke's hinge module to be measured further includes U-shaped frame under Hooke's hinge, and U-shaped frame passes through spiral shell under the Hooke's hinge
Nail is fixed in the tooling.
Preferably, the pitch regulation module includes motor, brake, motor cabinet, shaft coupling, transmission shaft, end cap, bearing
Holder assembly and second bearing component, the brake are fixed on the motor rear end, and the motor is fixed by screws in described
On motor cabinet, described transmission shaft one end is connect by the shaft coupling with the motor, and the end cap is fixed by screws in institute
It states on bearing block assembly, the transmission shaft other end passes through the bearing block assembly and is fixedly connected with first rocker arm, described
The other end of second rocker arm is connect with the second bearing component.
Preferably, the pitch regulation module further includes Hall sensor, magnet steel fixing seat and magnet steel, the hall sensing
Device is fixed on the first rocker arm lateral wall, and in the inside of first rocker arm, the magnet steel is solid for the magnet steel fixed seating
Reservation is equipped with several magnet steel mounting holes and is evenly arranged into half-turn, and the magnet steel, which is adsorbed onto the magnet steel by the effect of magnetic force, pacifies
It fills in hole.
The beneficial effects of the present invention are: the sliding bar of pitch regulation module is carried out when being tested Hooke's hinge after the installation is completed
Installation, guarantees that transiting rod is sandwiched between two bars of pitch regulation module, similarly guarantees that transiting rod is sandwiched in beat adjustment module
Two bars between, the pitch orientation of Hooke's hinge is first fixed to a certain specific position, adjusts beat direction to several specific positions,
Every position laser tracker measures the sphere center position coordinate of a target ball and adjusts after beat direction adjusts a circulation
Pitch orientation continues the above method and adjusts beat direction, obtain the sphere center position coordinate of target ball, test to next specific position
After all target ball sphere centre coordinates are fitted to a spherical surface, calculate all these target ball sphere centre coordinates and fit
Root-mean-square value between spherical surface, the value are the accuracy values of the Hooke's hinge.Easy for installation, high degree of automation, testing efficiency can
To reach very high degree, also have the characteristics that test sample point solidification and it is uniform, avoid because test position difference due to bring
Test error, measuring accuracy is high, and testing efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the online accuracy detecting device of Hooke's hinge of the invention；
Fig. 2 is the partial structural diagram of the online accuracy detecting device of Hooke's hinge of the invention；
Fig. 3 is the partial structural diagram of transmission belt of the present invention；
Fig. 4 is the structural schematic diagram of pitch regulation module of the present invention；
Fig. 5 is the structural schematic diagram of present invention Hooke's hinge module to be measured；
Fig. 6 is the structural schematic diagram of magnet steel fixing seat.
Wherein: 1, conveyer belt；1-1, test platform；1-2, the first locating piece；1-3, the second locating piece；1-4, screw hole；2,
Support；3, tripod；4, laser tracker；5, tooling；6, pitch regulation module；6-1, motor；6-2, brake；6-3, motor
Seat；6-4, shaft coupling；6-5, transmission shaft；6-6, end cap；6-7, bearing block assembly；6-8, the first rocker arm；6-9, spring；6-10,
Limit screw cap；6-11, fixed link；6-12, sliding bar；6-13, Hall sensor；6-14, magnet steel fixing seat；6-14-1, magnet steel
Mounting hole；6-15, magnet steel；6-16, the second rocker arm；6-17, second bearing component；7, Hooke's hinge module to be measured；8, beat is adjusted
Module；7-1, target ball；7-2, target ball seat；7-3, transiting rod；7-4, U-shaped frame on Hooke's hinge；7-5, cross axle；7-6, under Hooke's hinge
U-shaped frame.
Specific embodiment
The present invention is described in more detail with reference to the accompanying drawings and examples.
The online accuracy detecting device of a kind of Hooke's hinge as shown in Figure 1:, by conveyer belt 1, support 2, tripod 3, laser tracking
Instrument 4, tooling 5, pitch regulation module 6, Hooke's hinge module 7 to be measured, beat adjustment module 8 form.
Laser tracker 4 is erected on tripod 3, and tripod 3 is fixed on support 2, and support 2 is placed on conveyer belt 1
Side central part, Hooke's hinge module 7 to be measured, pitch regulation module 6, beat adjustment module 8 are fixed by screws in tooling 5
On, tooling 5 is fixed by screws in 1 central part of conveyer belt.
As shown in Figures 2 and 3: 1 central part of conveyer belt is provided with test platform 1-1, and the side of test platform 1-1 is equipped with
First locating piece 1-2 and the second locating piece 1-3 is provided with corresponding screw hole on four angles of mounting plane of test platform 1-1
1-4 passes through the mounting surface of test platform 1-1, the first locating piece when tooling 5 is transmitted to test platform 1-1 by conveyer belt 1
1-2 and the second locating piece 1-3 carries out the positioning of three orthogonal directions to tooling 5, is then locked by screw.
As shown in Figure 4: pitch regulation module 6 is to adjust Hooke's hinge in the position of pitch orientation, by motor 6-1, braking
Device 6-2, motor cabinet 6-3, shaft coupling 6-4, transmission shaft 6-5, end cap 6-6, bearing block set up 6-7, the first rocker arm 6-8, spring 6-
9, limit screw cap 6-10, fixed link 6-11, sliding bar 6-12, Hall sensor 6-13, magnet steel fixing seat 6-14, magnet steel 6-15
The components such as two rocker arm 6-16, second bearing component 6-17 composition.Brake 6-2 is fixed on the rear end of motor 6-1, and motor 6-1 is logical
It crosses screw to be fixed on motor cabinet 6-3, the one end transmission shaft 6-5 is connect by shaft coupling 6-4 with motor 6-1, and end cap 6-6 passes through spiral shell
Nail is fixed on bearing block assembly 6-7, and the transmission shaft 6-5 other end passes through the fixed company of bearing block assembly 6-7 and the first rocker arm 6-8
It connecing, the other end of the second rocker arm 6-16 is connect with second bearing component 6-17, and the top of supply line of rocker arm is equipped with axis hole and sliding slot, Gu
The both ends fixed pole 6-11 by with shaft hole matching, limit screw cap 6-10 limit be fixed on rocker arm, the both ends sliding bar 6-12 pass through limit
Position nut 6-10 limit, the both ends spring 6-9 are connected and fixed bar 6-11 and sliding bar 6-12, and sliding bar 6-12 is drawn by spring 6-9
Tightly it is mounted in sliding slot.
As shown in Figure 3: the composition and function of beat adjustment module 8 are identical as pitch regulation module 6, and the beat adjusts mould
First rocker arm size of block 8 is greater than the first rocker arm 6-8 size of the pitch regulation module 6, and vertical with pitch regulation module 6
Intersect and places.
As shown in Figure 5: Hooke's hinge module 7 to be measured is by U-shaped frame on target ball 7-1, target ball seat 7-2, excessive bar 7-3, Hooke's hinge
The components such as U-shaped frame 7-6 form on 7-4, Hooke's hinge, and U-shaped frame 7-6 passes through U-shaped frame on cross axle 7-5 connection Hooke's hinge under Hooke's hinge
7-4, U-shaped frame 7-6 is fixed by screws in tooling 5 under Hooke's hinge, and U-shaped frame 7-4 is threadedly attached to transition on Hooke's hinge
On bar 7-3, target ball seat 7-2 is fixed on the end of transiting rod 7-3 by the effect of magnetic force, and target ball 7-1 is solid by the effect of magnetic force
It is scheduled on target ball seat 7-2.
As shown in Figure 6: Hall sensor 6-13 is matched with magnet steel fixing seat 6-14 and magnet steel 6-15, hall sensing
Device 6-13 is fixed on the first rocker arm 6-8 lateral wall, and to feed back angle position locating for the first rocker arm 6-8, the magnet steel is fixed
Seat 6-14 is located at the inside of the first rocker arm 6-8；In order to guarantee the position precision after magnet steel 6-15 installation, in magnet steel fixing seat
6-14 is equipped with several magnet steel mounting hole 6-14-1 and is evenly arranged into half-turn, and position precision guarantees by machining, and specific point
It spends angle to need depending on the stroke of tested hinge, magnet steel 6-15 and magnet steel mounting hole 6-14-1 pass through cooperation positioning, magnet steel 6-
15 are adsorbed onto magnet steel mounting hole 6-14-1 by magneticaction, can be convenient dismounting.
After tested Hooke's hinge installs, the sliding bar 6-12 of pitch adjustment module 6 is installed, guarantees transition
Bar 7-3 is sandwiched between two bars of pitch regulation module 6, similarly guarantees that transiting rod 7-3 is sandwiched in two bars of beat adjustment module 8
Between, the pitch orientation of Hooke's hinge is first fixed to a certain specific position, beat direction is adjusted and reaches several specific positions, it is every
One position laser tracker 4 measures the sphere center position coordinate of a target ball.After beat direction adjusts a circulation, pitching is adjusted
Direction continues the above method and adjusts beat direction to next specific position, obtains the sphere center position coordinate of target ball 7-1, test
After all target ball sphere centre coordinates are fitted to a spherical surface, calculate all these target ball 7-1 sphere centre coordinates and fit
Spherical surface between root-mean-square value, which is the accuracy value of the Hooke's hinge.
The online accuracy detecting device clear principle of a kind of Hooke's hinge provided by the invention, structure is simple, easy for installation, automatically
Change degree is high, and testing efficiency can achieve very high degree.The present invention also have the characteristics that test sample point solidification and it is uniform, keep away
Exempt from bring test error due to test position difference, measuring accuracy is high, and testing efficiency is high.In addition, the present invention has versatility,
The playback accuracy of Hooke's hinge suitable for different size model detects, the producer especially suitable for mass production Hooke's hinge.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (8)
1. a kind of online accuracy detecting device of Hooke's hinge, including laser tracker (4), pitch regulation module (6), Hooke's hinge to be measured
Module (7) and beat adjustment module (8), which is characterized in that the pitch regulation module (6) is for adjusting Hooke's hinge in pitching side
To position, by the first rocker arm (6-8), spring (6-9), limit screw cap (6-10), fixed link (6-11), sliding bar (6-12) and
Second rocker arm (6-16) composition, the top of supply line of first rocker arm (6-8) and second rocker arm (6-16) be equipped with axis hole with
Sliding slot, the fixed link both ends (6-11) by with the shaft hole matching, limit screw cap (6-10) is by the fixed link (6-11)
Both ends limit be fixed on the rocker arm respectively, and the sliding bar both ends (6-12) are limited by limit screw cap (6-10), described
The spring both ends (6-9) connect the fixed link (6-11) and the sliding bar (6-12), sliding bar (6-12) both ends pass through
The spring (6-9) tenses and is mounted in the sliding slot；
The Hooke's hinge module (7) by U-shaped frame (7-4) on target ball (7-1), target ball seat (7-2), transiting rod (7-3) and Hooke's hinge,
U-shaped frame (7-6) forms under cross axle (7-5) and Hooke's hinge, and U-shaped frame (7-6) is connected by the cross axle (7-5) under Hooke's hinge
U-shaped frame (7-4) on the Hooke's hinge, U-shaped frame (7-4) is connected through a screw thread the transiting rod (7-3) on the Hooke's hinge, described
Target ball seat (7-2) is fixed on the end of the transiting rod (7-3) by the effect of magnetic force, and the target ball (7-1) passes through magnetic force
Effect is fixed on the target ball seat (7-2)；
The composition and function of the beat adjustment module (8) are identical as pitch regulation module (6), the beat adjustment module
(8) the first rocker arm (6-8) size is greater than the second rocker arm (6-17) size of the pitch regulation module (6), and bows with described
Face upward adjustment module (6) square crossing placement；
Transiting rod (7-3) is sandwiched between two bars of the pitch regulation module (6), is similarly sandwiched in the beat adjustment module
(8) between two bars, the laser tracker (4) measures the sphere center position coordinate of the target ball (7-1).
2. the online accuracy detecting device of Hooke's hinge as described in claim 1, which is characterized in that further include conveyer belt (1), support
(2) it is erected on the tripod (3) with tripod (3), the laser tracker (4), the tripod (3) is fixed on described
On support (2), the support (2) is placed on the conveyer belt (1) side central part.
3. the online accuracy detecting device of Hooke's hinge as described in claim 1, which is characterized in that transmission belt (1) central portion
Position is provided with test platform (1-1), and the side of the test platform (1-1) is equipped with the first locating piece (1-2) and the second locating piece
(1-3), and corresponding screw hole (1-4) is respectively equipped on four angles of the mounting plane of the test platform (1-1).
4. the online accuracy detecting device of Hooke's hinge as claimed in claim 3, which is characterized in that the tooling (5) passes through screw
It is fixed on the central part of the conveyer belt (1).
5. the online accuracy detecting device of Hooke's hinge as claimed in claim 4, which is characterized in that pitch regulation module (6) and partially
Pendulum adjustment module (8) is fixed by screws on the tooling (5).
6. the online accuracy detecting device of Hooke's hinge as described in claim 1, which is characterized in that U-shaped frame (7- under the Hooke's hinge
6) it is fixed by screws on the tooling (5).
7. the online accuracy detecting device of Hooke's hinge as described in claim 1, which is characterized in that the pitch regulation module (6)
Including motor (6-1), brake (6-2), motor cabinet (6-3), shaft coupling (6-4), transmission shaft (6-5), end cap (6-6), bearing
Holder assembly (6-7) and second bearing component (6-17), the brake (6-2) are fixed on the rear end the motor (6-1), the electricity
Machine (6-1) is fixed by screws on the motor cabinet (6-3), and described transmission shaft one end (6-5) passes through the shaft coupling (6-4)
It is connect with the motor (6-1), the end cap (6-6) is fixed by screws on the bearing block assembly (6-7), the transmission
Axis (6-5) other end passes through the bearing block assembly (6-7) and is fixedly connected with first rocker arm (6-8), second rocker arm
The other end of (6-16) is connect with the second bearing component (6-17).
8. the online accuracy detecting device of Hooke's hinge as described in claim 1, which is characterized in that the pitch regulation module (6)
It further include Hall sensor (6-13), magnet steel fixing seat (6-14) and magnet steel (6-15), the Hall sensor (6-13) is fixed
On the first rocker arm (6-8) lateral wall, the magnet steel fixing seat (6-14) is located at the inside of first rocker arm (6-8),
The magnet steel fixing seat (6-14) is equipped with several magnet steel mounting holes (6-14-1) and is evenly arranged into half-turn, the magnet steel (6-15)
It is adsorbed onto the magnet steel mounting hole (6-14-1) by the effect of magnetic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462803.1A CN110174051B (en) | 2019-05-30 | 2019-05-30 | Hooke joint online precision detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462803.1A CN110174051B (en) | 2019-05-30 | 2019-05-30 | Hooke joint online precision detection device |
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| CN110174051A true CN110174051A (en) | 2019-08-27 |
| CN110174051B CN110174051B (en) | 2020-04-10 |
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| CN201910462803.1A Active CN110174051B (en) | 2019-05-30 | 2019-05-30 | Hooke joint online precision detection device |
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| CN110595359A (en) * | 2019-09-19 | 2019-12-20 | 中国科学院长春光学精密机械与物理研究所 | Online precision detection equipment for ball hinge |
| CN111855183A (en) * | 2020-07-29 | 2020-10-30 | 中国科学院光电技术研究所 | Multi-degree-of-freedom motion branched chain resolution testing platform and testing method |
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| Publication number | Publication date |
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| CN110174051B (en) | 2020-04-10 |
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